CN102348211A - Frequency spectrum detection and frequency allocation system and method - Google Patents
Frequency spectrum detection and frequency allocation system and method Download PDFInfo
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Abstract
The invention discloses a frequency spectrum detection and frequency allocation system and method, which are used for reducing the overhead of a leasing network on frequency spectrum detection and improving the efficiency of frequency spectrum detection. The frequency spectrum detection and frequency allocation system comprises a frequency management device, and frequency spectrum detection devices respectively arranged for each frequency allocation area of an authorized network, wherein the frequency spectrum detection devices are used for carrying out frequency spectrum detection on the frequency allocation areas of the targeted authorized network and reporting the detected frequency occupation information of the frequency allocation areas to the frequency management device; and the frequency management device is used for determining the working frequency used by each base station in the leasing network according to the frequency occupation information of the authorized network, reported by the frequency spectrum detection devices, so as to avoid interfering the authorized network.
Description
Technical Field
The present invention relates to the field of radio technologies, and in particular, to a system and a method for spectrum detection and frequency allocation.
Background
Cognitive radio technology addresses the problem of multiple networks dynamically sharing spectrum. When the authorized frequency of one network is not occupied, the network can be temporarily lent to other networks for use, and the network with the authorized frequency can be called an authorized network; other networks can find frequency holes by detecting the frequency occupied by the air signal, acquire the information of available idle frequency, and then use the information, and the network borrowing the frequency can be called a leasing network. When the authorized network re-occupies the frequency, the leased network needs to timely return the borrowed frequency and switch to other idle frequencies.
In the prior art, for a leased network adopting a mobile cellular technology, it is often required that all base stations and all terminals in the network have a spectrum detection function, and each base station and each terminal detect a spectrum occupied by an authorized network and adjust an operating frequency used by each base station in the leased network according to a spectrum detection result.
The inventors have found that not all application scenarios require such a scheme. When the frequency configuration area of the licensed network is large, for example, in a scenario where a Long Term Evolution (LTE) network and a broadcast network dynamically share a spectrum, because the coverage area of a single broadcast tower in the broadcast network is large, the spectrum occupancy in the broadcast network is the same in a large area, and the occupied frequency can be determined by a signal spectrum transmitted by the broadcast tower. In this case, if all base stations and all terminals in the LTE network have the function of spectrum detection, the spectrum detection resources are wasted; and when the base station or the terminal is far away from a signal transmission center of the broadcast network, namely a broadcast tower, the required spectrum detection time is long, so that the spectrum detection result is inaccurate, and the spectrum detection efficiency is reduced.
Therefore, how to reduce the overhead of leasing the network for spectrum detection and improve the spectrum detection efficiency becomes one of the technical problems to be solved urgently in the prior art.
Disclosure of Invention
The embodiment of the invention provides a frequency spectrum detection and frequency allocation system and method, which are used for reducing the expense of leasing a network for frequency spectrum detection and improving the efficiency of frequency spectrum detection.
The embodiment of the invention provides a frequency spectrum detection and frequency configuration system, which comprises frequency management equipment and frequency spectrum detection equipment which is respectively arranged aiming at each frequency configuration area of an authorized network, wherein:
the frequency spectrum detection device is used for performing frequency spectrum detection on a frequency configuration area of the targeted authorized network and reporting the detected frequency occupation information of the frequency configuration area to the frequency management device;
and the frequency management equipment is used for determining the working frequency which is used by each base station in the leased network according to the frequency occupation information of the authorized network reported by each frequency spectrum detection equipment so as to avoid interfering with the authorized network.
The embodiment of the invention also provides a frequency spectrum detection and frequency configuration method, which comprises the following steps:
the method comprises the steps that frequency management equipment receives frequency occupation information of a frequency configuration area of an authorized network, which is detected by spectrum detection equipment, wherein the spectrum detection equipment is respectively arranged aiming at each frequency configuration area of the authorized network and carries out spectrum detection on the frequency configuration area of the authorized network;
and the frequency management equipment determines the working frequency which is used by each base station in the leased network according to the frequency occupation information of the authorized network reported by each frequency spectrum detection equipment so as to avoid interfering with the authorized network.
According to the frequency spectrum detection and frequency configuration system and method provided by the embodiment of the invention, all base stations and all terminals in a leased network do not need to have a frequency spectrum detection function, and only frequency spectrum detection equipment is respectively arranged in each frequency configuration area of an authorized network, and is used for carrying out frequency spectrum detection on the frequency configuration area of the authorized network to which the frequency spectrum detection equipment aims, and reporting the frequency spectrum occupation information of the detected frequency configuration area to frequency management equipment, so that the expense of the leased network for frequency spectrum detection is reduced, and the frequency spectrum detection efficiency is improved; the frequency management device determines the working frequency to be used by each base station in the leased network according to the frequency occupation information of the authorized network reported by each frequency spectrum detection device, so that the frequency management device adapts to the change of the frequency occupied by the authorized network, and the interference of the authorized network is avoided. The technical scheme provided by the embodiment of the invention has less modification to the existing protocol and less modification to the equipment in the existing leased network.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a network architecture diagram of a spectrum sensing and frequency allocation system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for spectrum sensing and frequency allocation according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an implementation of a spectrum detection and frequency allocation method for sharing a spectrum between an LTE network and a broadcast network according to an embodiment of the present invention.
Detailed Description
In order to achieve the purposes of reducing the overhead of leasing a network for spectrum detection and improving spectrum detection efficiency, embodiments of the present invention provide a system and a method for spectrum detection and frequency allocation.
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings of the specification, it being understood that the preferred embodiments described herein are merely for illustrating and explaining the present invention, and are not intended to limit the present invention, and that the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
The inventor finds that all base stations and all terminals have the spectrum detection function by adopting the leased network of the mobile cellular technology. And each base station and the terminal adjust the working frequency which should be used by each base station in the leased network according to the frequency spectrum detection result by detecting the frequency occupied by the authorized network. However, when the frequency configuration area of the licensed network is large, because the frequencies occupied by the licensed network in the large coverage area are the same, it is not necessary to rent that all base stations and all terminals in the network have the spectrum detection function, and it is not necessary for the terminals to perform spectrum detection, and it is only necessary to perform spectrum detection by a very small number of base stations or independent spectrum detection devices, for example, only to perform spectrum detection by a base station close to the licensed network and notify other base stations and terminals of the detection result. Taking a scenario that the LTE network and the broadcast network dynamically share a spectrum as an example, one or several ENBs (base stations) of the LTE network that are close to the broadcast tower may be selected to perform spectrum detection, and if the ENBs find that the broadcast signal re-occupies a certain frequency, all ENBs in a geographic range where the frequency occupied by the broadcast tower is avoided in the LTE network may be notified to avoid using the frequency. Therefore, in practical application, spectrum detection can be performed through a few base stations or independent spectrum detection equipment, so that the tracking of the spectrum occupancy change condition of the authorized network and the corresponding operating frequency of the configured base station by the whole leased network are completed. The spectrum detection and frequency configuration system and method provided by the embodiment of the invention are particularly suitable for application scenarios in which the frequency configuration area of the licensed network (for example, the coverage area of a single broadcast tower in a broadcast network) is much larger than the coverage area of a base station of a leased network (for example, a single ENB cell in an LTE network).
Based on this, an embodiment of the present invention provides a spectrum detection and frequency configuration system, as shown in fig. 1, including a spectrum detection device 101 and a frequency management device 102, where the spectrum detection device 101 is set for each frequency configuration region of an authorized network, and one or more spectrum detection devices 101 may be set for each frequency configuration region of the authorized network; one frequency management device 102 may be connected to a plurality of spectrum sensing devices 101, and each spectrum sensing device 101 is responsible for sensing frequency occupancy information of a frequency allocation region of one licensed network. The frequency management device 102 communicates with the spectrum sensing device 101 through an F1 interface, and the frequency management device 102 communicates with a base station of a leased network through an F2 interface. Wherein:
the spectrum detection device 101 is configured to perform spectrum detection on a frequency configuration area of a targeted licensed network, and report frequency occupancy information of the detected frequency configuration area to the frequency management device 102;
the frequency management device 102 is configured to determine, according to the frequency occupancy information of the authorized network reported by each spectrum detection device 101, an operating frequency that each base station in the leased network should use, so as to avoid interference with the authorized network.
In a specific implementation, the frequency management device 102 is specifically configured to determine, according to the frequency occupation information of the frequency allocation areas reported by the frequency spectrum detection devices 101, geographic ranges in which the leased network avoids using frequencies occupied by each frequency allocation area in the authorized network, and adjust the operating frequency of each base station of the leased network in each geographic range to an idle frequency that can avoid interference with the corresponding frequency allocation area.
The frequency occupancy information of the frequency configuration region of the licensed network may include: the signal intensity of a signal emission center of a frequency configuration area of an authorized network received by the frequency spectrum detection equipment; in this case, for each frequency allocation area of the licensed network, the frequency management device 102 determines, according to the signal strength of the signal transmission center of the frequency allocation area received by the spectrum detection device 101 and the distance from the spectrum detection device 101 to the signal transmission center of the frequency allocation area, the transmission signal strength of the signal transmission center of the frequency allocation area, and determines, in combination with the interference resistance requirement of the licensed network, the geographical range in which the leased network avoids using the frequency occupied by the frequency allocation area.
The frequency occupancy information of the frequency configuration area of the licensed network may also include: indicating information of whether a frequency configuration area of the authorized network is occupied for each frequency or not is determined by the frequency spectrum detection equipment; in this case, for the frequency allocation region of each authorized network, the frequency management device 102 determines, according to the indication information of whether the frequency allocation region is occupied for each frequency and the anti-interference requirement of the authorized network, which are determined by the spectrum detection device 101, a geographic range in which the leased network avoids using the frequency occupied by the frequency allocation region.
The frequency management device 102 is specifically configured to, when determining that there is a base station of a leased network having the same used operating frequency as the frequency occupied by the corresponding frequency configuration area for each determined geographical range, adjust the operating frequency to be used by the determined base station to an idle frequency not occupied by the corresponding frequency configuration area, and send a frequency switching instruction for switching to the idle frequency to the determined base station.
Preferably, the frequency management device 102 may send a configuration command to the spectrum sensing device 101 in advance, where the configuration command includes a start time, a sensing period, and a sensing range of spectrum sensing; the spectrum sensing device 101 may perform periodic spectrum sensing on the frequency configuration area of the authorized network to which it is directed within the sensing range when the sensing time arrives according to the configuration command sent by the frequency management device 102.
In the embodiment of the present invention, the spectrum sensing device 101 may be an independent node of a leased network, or may be disposed in a base station of the leased network near a signal transmission center in a frequency allocation area from an authorized network; the frequency management device 102 may be an independent node in the leased network, may be disposed in a network management system of the leased network, may be disposed in a radio access network of the leased network, and may be disposed in a core network of the leased network. In the embodiment of the present invention, it is defined that the frequency management device 102 communicates with the spectrum sensing device 101 through an F1 interface, and the frequency management device 102 communicates with a base station in a leased network through an F2 interface. If the spectrum detection device 101 and the frequency management device 102 are independent nodes of a leased network, the amount of modification to the existing protocol can be greatly reduced, and the modification to the devices in the existing leased network is not required.
In the embodiment of the present invention, the authorized network may be a broadcast network, and the leased network may be an LTE network or a UMTS (Universal Mobile telecommunications System) network.
In the embodiment of the present invention, when the leased network is an LTE network and the spectrum sensing device 101 is disposed in an ENB (base station) of the LTE network, preferably, the frequency management device 102 may be disposed in the following manner:
the frequency management device 102 may be arranged in a network management system of an LTE network, and an F1 interface between the spectrum detection device 101 and the frequency management device 102 and an F2 interface between the frequency management device and the ENB may be implemented by network management interfaces;
the frequency management device 102 may also be disposed in a certain ENB of the LTE network, an F1 interface between the spectrum sensing device 101 integrated in the ENB and the frequency management device 102 integrated in the ENB may be implemented by an X2 interface, and an F2 interface between the frequency management device 102 integrated in the ENB and another ENB may be implemented by an X2 interface;
the frequency management device 102 may also be disposed on an MME (mobility management entity) of the LTE network, an F1 interface between the spectrum sensing device 101 and the frequency management device 102 may be implemented by an S1 interface, and an F2 interface between the frequency management device 102 and the ENB may be implemented by an S1 interface.
In the embodiment of the present invention, when the leased network is a UMTS network and the spectrum sensing device 101 is disposed in a NodeB (base station) of the UMTS network, preferably, the frequency management device 102 may be disposed in the following manner:
the frequency management device 102 may be disposed in a network management system of a UMTS network, and an F1 interface between the frequency management device 102 and the spectrum detection device 101 and an F2 interface between the frequency management device 102 and a NodeB (base station) may be implemented by network management interfaces;
the frequency management device 102 may also be disposed in a certain RNC (radio network controller) of the UMTS network, an F1 interface between the frequency management device 102 and the spectrum sensing device 101 disposed in a NodeB under the RNC may be implemented by an Iub interface, an F1 interface between the frequency management device 102 and the spectrum sensing device 101 disposed in a NodeB under the other RNC may be implemented by an Iur and Iub interface, an F2 interface between the frequency management device 102 and the NodeB under the RNC may be implemented by an Iub interface, and an F2 interface between the frequency management device 102 and the NodeB under the other RNC may be implemented by an Iur and Iub interface;
the frequency management device 102 may also be provided in an SGSN (serving GPRS support node; GPRS: general packet radio service) of the UMTS network, and the F1 interface between the frequency management device 102 and the spectrum sensing device 101 may be implemented by an Iu and Iub interface, and the F2 interface between the frequency management device 102 and a NodeB may be implemented by an Iu and Iub interface.
Based on the same technical concept, an embodiment of the present invention provides a method for spectrum detection and frequency allocation, as shown in fig. 2, including:
s201, a frequency management device receives frequency occupation information of a frequency configuration region of an authorized network, which is detected by a spectrum detection device, wherein the spectrum detection device is respectively arranged for each frequency configuration region of the authorized network and performs spectrum detection on the frequency configuration region of the authorized network;
the method comprises the steps that at least one spectrum detection device is respectively arranged in a frequency configuration area of an authorized network, one spectrum management device can be connected with a plurality of spectrum detection devices, each spectrum detection device carries out spectrum detection on the frequency configuration area of the authorized network to which the spectrum detection device is directed, and the detected spectrum occupation information of the frequency configuration area of the authorized network is reported to the frequency management device.
S202, the frequency management device determines the working frequency to be used by each base station in the leased network according to the frequency occupation information of the authorized network reported by each frequency spectrum detection device so as to avoid interference with the authorized network.
In a specific implementation, S202 may include the following steps:
step a, respectively determining a geographical range of frequencies occupied by each frequency configuration area in a leased network to avoid using each frequency configuration area in an authorized network by the frequency management equipment according to frequency occupation information of the frequency configuration areas reported by each frequency spectrum detection equipment;
the frequency occupation information of the frequency configuration area of the authorized network may specifically include: the signal intensity of a signal emission center of a frequency configuration area of an authorized network received by the frequency spectrum detection equipment; in a specific implementation of step a, for each frequency configuration area of the licensed network, the frequency management device determines, according to the signal strength of the signal transmission center of the frequency configuration area received by the spectrum detection device and the distance from the spectrum detection device to the signal transmission center of the frequency configuration area, the transmission signal strength of the signal transmission center of the frequency configuration area; and determining the geographic range of the frequency occupied by the leased network to avoid using the frequency allocation area in combination with the anti-interference requirement of the authorized network.
The frequency occupancy information of the frequency configuration area of the licensed network may also include: indicating information of whether a frequency configuration area of the authorized network is occupied for each frequency or not is determined by the frequency spectrum detection equipment; in the specific implementation of step a, for a frequency configuration area of each authorized network, the frequency management device determines, according to the indication information of whether the frequency configuration area is occupied for each frequency and the anti-interference requirement of the authorized network, a geographic range in which the leased network avoids using the frequency occupied by the frequency configuration area. When initializing, the frequency management device configures, for the base station of the leased network, the operating frequency different from the frequency occupied by the frequency configuration area of the authorized network according to the indication information of whether each frequency is occupied by the frequency configuration area of the authorized network.
And b, the frequency management equipment adjusts the working frequency of each base station of the leased network in each geographic range into an idle frequency which can avoid interference in the corresponding frequency configuration area.
In the specific implementation of step b, when the frequency management device determines, for each determined geographical range, that there is a base station of a leased network that uses a working frequency that is the same as a frequency occupied by the corresponding frequency allocation region, the working frequency of the determined base station is adjusted to an idle frequency that is not occupied by the corresponding frequency allocation region, and a frequency switching instruction for switching to the idle frequency is sent to the determined base station. In a specific implementation, when the frequency management device finds that the frequency configuration area of the authorized network releases a certain frequency according to the indication information of whether each frequency is occupied by the frequency configuration area, if the frequency management device considers that the released frequency is more suitable for the base station of the leased network, the frequency management device may also initiate a frequency switching instruction to the base station of the leased network to instruct the base station of the leased network to switch to the idle frequency.
Preferably, the frequency management device may control a spectrum detection start time, a detection period, and a detection range of the spectrum detection device, and send a configuration command to the spectrum detection device, where the configuration command includes the start time, the detection period, and the detection range of spectrum detection, and according to the configuration command sent by the frequency management device, the spectrum detection device performs periodic spectrum detection on a frequency configuration area of a licensed network to which the spectrum detection device is directed within the detection range when the start time of spectrum detection arrives.
In order to better understand the embodiment of the present invention, the licensed network and the leased network take the broadcast network and the LTE network as examples to illustrate the spectrum detection and frequency configuration method, respectively, and the frequency management device and the spectrum detection device involved in the embodiment of the present invention are independent nodes disposed in the LTE network.
As shown in fig. 3, the method comprises the following steps:
s301, setting at least one spectrum detection device in the LTE network;
in a specific implementation, one or several independent spectrum detection devices are respectively arranged near each broadcast tower of the broadcast network.
S302, configuring spectrum detection parameters by spectrum detection equipment;
in specific implementation, the frequency management device sends a configuration command of the spectrum sensing parameter to the spectrum sensing device, where the configuration command is used to configure a working parameter of the spectrum sensing device, and the spectrum sensing device configures the working parameter according to the received configuration command, where the set working parameter may include: the starting time, the detection period, the detection range and the like of the spectrum detection.
S303, the frequency spectrum detection device queries a timer regularly;
s304, the frequency spectrum detection device judges whether the detection time is reached, if so, S305 is executed, otherwise, S303 is executed;
in specific implementation, the spectrum detection device periodically queries the timer according to the detection time and the detection period set by the frequency management device, and judges whether the detection time is reached according to the query result.
S305, spectrum detection is carried out on a broadcasting tower aimed at in a broadcasting network by spectrum detection equipment;
in a specific implementation, the spectrum detection device performs spectrum detection on a broadcast tower targeted by the spectrum detection device in the broadcast network according to a spectrum detection range set by the frequency management device.
S306, the spectrum detection device reports a spectrum detection result aiming at a broadcast tower of a broadcast network;
in a specific implementation, the spectrum sensing device reports the detected received signal strength of the broadcast tower or the determined indication information of whether the broadcast tower occupies each frequency in the broadcast network to the frequency management device.
S307, the frequency management equipment determines the geographical range of the frequency occupied by each broadcast tower in the LTE network to avoid using the broadcast network;
in specific implementation, for each broadcast tower, the frequency management device may determine the transmission signal strength of the broadcast tower according to the received signal strength of the broadcast tower reported by the spectrum detection device and the distance from the spectrum detection device to the broadcast tower, and determine, in combination with the anti-interference requirement of the broadcast network, a geographical range in which the LTE network avoids using the frequency occupied by the broadcast tower in the broadcast network. Or, the frequency management device may determine, according to the determined indication information of whether the broadcast tower of the broadcast network occupies each frequency and the anti-interference requirement of the broadcast network, a geographical range in which the LTE network avoids using the frequency occupied by the broadcast tower in the broadcast network.
S308, the frequency management equipment judges whether each ENB of the LTE network in each geographic range needs to change the working frequency, if so, S309 is executed, otherwise, the operation is ended;
in a specific implementation, in a geographical range where the LTE network avoids using the frequency occupied by each broadcast tower in the broadcast network, the ENB using the frequency occupied by the broadcast tower needs to change its operating frequency.
S309, the frequency management equipment sends a frequency switching instruction to the ENB needing to change the working frequency;
in specific implementation, the frequency management device adjusts the operating frequency of the ENB whose operating frequency needs to be changed to an idle frequency that is not occupied by the broadcast tower according to the received spectrum detection result, and sends a frequency switching instruction to the ENB.
And S310, switching the working frequency of the ENB with the need of changing the working frequency.
In specific implementation, the ENB switches its own working frequency according to the frequency switching instruction of the frequency management device, notifies the managed terminal to perform frequency switching, and feeds back a result of the frequency switching to the frequency management device.
According to the frequency spectrum detection and frequency configuration system and method provided by the embodiment of the invention, all base stations and all terminals in a leased network do not need to have a frequency spectrum detection function, and only frequency spectrum detection equipment is respectively arranged in each frequency configuration area of an authorized network, and is used for carrying out frequency spectrum detection on the frequency configuration area of the authorized network to which the frequency spectrum detection equipment aims, and reporting the detected frequency spectrum occupation information of the frequency configuration area of the authorized network to frequency management equipment, so that the expense of the leased network for frequency spectrum detection is reduced, and the frequency spectrum detection efficiency is improved; the frequency management equipment determines the working frequency which is used by each base station in the leased network according to the frequency occupation information of the authorized network reported by each frequency spectrum detection equipment, so that the frequency management equipment adapts to the change of the frequency occupied by the authorized network to avoid interfering the authorized network; by adjusting the idle frequency not occupied by the authorized network used by each base station in the leased network, the idle frequency can be reasonably utilized on the premise of avoiding interference with the authorized network, and the frequency utilization rate is improved. The technical scheme provided by the embodiment of the invention is particularly suitable for the application scene that the frequency configuration area of the authorized network is far larger than the coverage area of the base station of the leased network, the base station in the leased network can be modified without or in a small amount, the modification amount of the existing protocol is less, and the modification of the equipment in the existing leased network is less.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (18)
1. A spectrum detection and frequency configuration system is characterized by comprising a frequency management device and a spectrum detection device which is respectively arranged aiming at each frequency configuration area of a licensed network, wherein:
the frequency spectrum detection device is used for performing frequency spectrum detection on a frequency configuration area of the targeted authorized network and reporting the detected frequency occupation information of the frequency configuration area to the frequency management device;
and the frequency management equipment is used for determining the working frequency which is used by each base station in the leased network according to the frequency occupation information of the authorized network reported by each frequency spectrum detection equipment so as to avoid interfering with the authorized network.
2. The system of claim 1,
the frequency spectrum detection equipment is an independent node in a leased network, or the frequency spectrum detection equipment is arranged in a base station of the leased network;
the frequency management device is an independent node in a leased network, or the frequency management device is arranged in a network management system of the leased network, or in a radio access network of the leased network, or in a core network of the leased network.
3. The system of claim 1 or 2,
the frequency management device is specifically configured to determine, according to the frequency occupation information of the frequency allocation areas reported by the frequency spectrum detection devices, geographic ranges in which the leased network avoids using frequencies occupied by each frequency allocation area in the authorized network, and adjust the operating frequency of each base station of the leased network in each geographic range to an idle frequency that can avoid interfering with the corresponding frequency allocation area.
4. The system of claim 3, wherein the frequency occupancy information for the frequency configuration region of the licensed network comprises: the signal intensity of a signal emission center of a frequency configuration area of an authorized network received by the frequency spectrum detection equipment;
the frequency management device is specifically configured to, for a frequency configuration area of each authorized network, determine, according to the signal intensity of the signal transmission center of the frequency configuration area received by the spectrum detection device and the distance from the spectrum detection device to the signal transmission center of the frequency configuration area, the transmission signal intensity of the signal transmission center of the frequency configuration area, and determine, in combination with an anti-interference requirement of the authorized network, a geographical range in which the leased network avoids using the frequency occupied by the frequency configuration area.
5. The system of claim 3, wherein the frequency occupancy information for the frequency configuration region of the licensed network comprises: indicating information of whether a frequency configuration area of the authorized network is occupied for each frequency or not is determined by the frequency spectrum detection equipment;
the frequency management device is specifically configured to determine, for a frequency configuration area of each authorized network, a geographical range in which a leased network avoids using frequencies occupied by the frequency configuration area according to indication information of whether the frequency configuration area is occupied for each frequency and anti-interference requirements of the authorized network, where the indication information is determined by the frequency spectrum detection device.
6. The system of claim 3,
the frequency management device is specifically configured to, when it is determined that, for each determined geographical range, there is a base station of a leased network that uses a working frequency that is the same as a frequency occupied by a corresponding frequency configuration area, adjust the working frequency that the determined base station should use to an idle frequency that is not occupied by the corresponding frequency configuration area, and send a frequency switching instruction for switching to the idle frequency to the determined base station.
7. The system of claim 1 or 2,
the frequency management device is further configured to send a configuration command to the spectrum detection device, where the configuration command includes a start time, a detection period, and a detection range of spectrum detection;
the spectrum detection device is further configured to perform periodic spectrum detection on a frequency configuration area of the licensed network within the detection range when a start time of the spectrum detection arrives according to the configuration command sent by the frequency management device.
8. The system of claim 1 or 2, wherein the frequency management device communicates with the spectrum sensing device via an F1 interface, and wherein the frequency management device communicates with a base station in a leased network via an F2 interface.
9. The system of claim 8, wherein the licensed network comprises a broadcast network, the leased network comprises a Long Term Evolution (LTE) network; the frequency spectrum detection equipment is arranged in a base station ENB of the ITE network;
the frequency management equipment is arranged in a network management system of an LTE network, the frequency management equipment and the frequency spectrum detection equipment arranged in the base station ENB realize an F1 interface through a network management interface, and the frequency management equipment realizes an F2 interface with the base station ENB through the network management interface; or,
the frequency management device is arranged in one base station ENB of an LTE network, the frequency management device and spectrum detection devices arranged in other base stations ENB realize an F1 interface through an X2 interface, and the frequency management device realizes an F2 interface with other base stations ENB through an X2 interface; or,
the frequency management device is arranged in a mobility management entity MME of an LTE network, the frequency management device and spectrum detection equipment arranged in a base station ENB realize an F1 interface through an S1 interface, and the frequency management device realizes an F2 interface with the base station ENB through an S1 interface.
10. The system of claim 8, wherein the authorized network comprises a broadcast network, and the leased network comprises a Universal Mobile Telecommunications System (UMTS) network; the frequency spectrum detection equipment is arranged in a base station NodeB of the UMTS network;
the frequency management equipment is arranged in a network management system of a UMTS network, the frequency management equipment and the spectrum detection equipment arranged in a base station NodeB realize an F1 interface through a network management interface, and the frequency management equipment realizes an F2 interface with the base station NodeB through the network management interface; or,
the frequency management device is arranged in a radio network controller RNC of a UMTS network, the frequency management device and the spectrum detection device arranged in a base station NodeB under the RNC realize an F1 interface through an Iub interface, the frequency management device and the spectrum detection device arranged in the base station NodeB under the other RNC realize an F1 interface through Iur and Iub interfaces, the frequency management device realizes an F2 interface with the base station NodeB under the RNC through the Iub interface, and the frequency management device realizes an F2 interface with the base station NodeB under the other RNC through the Iur and Iub interfaces; or,
the frequency management device is arranged in a general packet radio service GPRS service support node SGSN of a UMTS network, the frequency management device and a spectrum detection device arranged in a base station NodeB realize an F1 interface through Iu and Iub interfaces, and the frequency management device realizes an F2 interface with the base station NodeB through the Iu and Iub interfaces.
11. The system according to claim 1 or 2, characterized in that one or more spectrum sensing devices are respectively provided for each frequency configuration region of the licensed network.
12. A method for spectrum sensing and frequency allocation, comprising:
the method comprises the steps that frequency management equipment receives frequency occupation information of a frequency configuration area of an authorized network, which is detected by spectrum detection equipment, wherein the spectrum detection equipment is respectively arranged aiming at each frequency configuration area of the authorized network and carries out spectrum detection on the frequency configuration area of the authorized network;
and the frequency management equipment determines the working frequency which is used by each base station in the leased network according to the frequency occupation information of the authorized network reported by each frequency spectrum detection equipment so as to avoid interfering with the authorized network.
13. The method of claim 12,
the frequency spectrum detection equipment is an independent node in a leased network, or the frequency spectrum detection equipment is arranged in a base station of the leased network;
the frequency management device is an independent node in a leased network, or the frequency management device is arranged in a network management system of the leased network, or in a radio access network of the leased network, or in a core network of the leased network.
14. The method according to claim 12 or 13, wherein the determining, according to the frequency occupancy information of the licensed network reported by each spectrum sensing device, the operating frequency to be used by each base station in the leased network to avoid interfering with the licensed network includes:
the frequency management equipment respectively determines the geographic range of the frequency occupied by each frequency configuration area in the leased network to avoid using the authorized network according to the frequency occupation information of the frequency configuration area reported by each frequency spectrum detection equipment; and are
And adjusting the working frequency used by each base station of the leased network in each geographic range to be the idle frequency which avoids interfering the corresponding frequency allocation area.
15. The method of claim 14, wherein the frequency occupancy information for the frequency configuration region of the licensed network comprises: the signal intensity of a signal emission center of a frequency configuration area of an authorized network received by the frequency spectrum detection equipment;
the frequency management device respectively determines a geographical range of frequencies occupied by each frequency configuration area in the leased network to avoid using each frequency configuration area in the authorized network according to the frequency occupation information of the frequency configuration area reported by each frequency spectrum detection device, and specifically includes:
for each frequency configuration area of the licensed network, the frequency management device determines the transmission signal strength of the signal transmission center of the frequency configuration area according to the signal strength of the signal transmission center of the frequency configuration area received by the spectrum detection device and the distance from the spectrum detection device to the signal transmission center of the frequency configuration area; and are
And determining the geographic range of the frequency occupied by the leased network to avoid using the frequency allocation area in combination with the anti-interference requirement of the authorized network.
16. The method of claim 14, wherein the frequency occupancy information for the frequency configuration region of the licensed network comprises: indicating information of whether a frequency configuration area of the authorized network is occupied for each frequency or not is determined by the frequency spectrum detection equipment;
the frequency management device respectively determines a geographical range of frequencies occupied by each frequency configuration area in the leased network to avoid using each frequency configuration area in the authorized network according to the frequency occupation information of the frequency configuration area reported by each frequency spectrum detection device, and specifically includes:
and aiming at the frequency configuration area of each authorized network, the frequency management equipment determines the geographical range of the frequency occupied by the leased network to avoid using the frequency configuration area according to the indication information of whether the frequency configuration area is occupied by each frequency and the anti-interference requirement of the authorized network, which are determined by the frequency spectrum detection equipment.
17. The method according to claim 14, wherein the adjusting the operating frequency of each base station leasing the network in each geographic area to an idle frequency capable of avoiding interference with the corresponding frequency allocation region comprises:
and aiming at each determined geographical range, when the frequency management equipment determines that a base station of a leased network with the same used working frequency and the frequency occupied by the corresponding frequency configuration area exists, the frequency management equipment adjusts the working frequency to be used by the determined base station to an idle frequency which is not occupied by the corresponding frequency configuration area, and sends a frequency switching instruction for switching to the idle frequency to the determined base station.
18. The method of claim 12 or 13, further comprising:
the frequency spectrum detection equipment sends a configuration command to the frequency spectrum detection equipment, wherein the configuration command comprises the starting time, the detection period and the detection range of frequency spectrum detection;
and the frequency spectrum detection device carries out periodic frequency spectrum detection on the frequency configuration area of the authorized network in the detection range when the start time of the frequency spectrum detection is reached according to the configuration command sent by the frequency management device.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166731A (en) * | 2013-02-01 | 2013-06-19 | 广州视声电子科技有限公司 | Anti-interference method and system of indoor monitoring urgency message sending |
| WO2014101482A1 (en) * | 2012-12-27 | 2014-07-03 | 华为技术有限公司 | Method and base station for sharing frequency spectrum resource |
| CN104717660A (en) * | 2013-12-17 | 2015-06-17 | 中兴通讯股份有限公司 | Frequency spectrum processing method and device |
| WO2015165011A1 (en) * | 2014-04-28 | 2015-11-05 | 华为技术有限公司 | Data transmission transmitting terminal device, receiving terminal device, and method |
| WO2016066120A1 (en) * | 2014-10-31 | 2016-05-06 | ***通信集团公司 | Method, apparatus, terminal and base station for detecting spectrum resource |
| CN106685551A (en) * | 2017-02-08 | 2017-05-17 | 广州新拓慧电子科技有限公司 | Signal frequency occupation evaluating system |
| CN107913852A (en) * | 2016-10-10 | 2018-04-17 | 顺丰科技有限公司 | The collocation method of wireless sorting device |
| CN108322914A (en) * | 2013-03-01 | 2018-07-24 | 英特尔Ip公司 | Frequency spectrum share based on self-organizing network |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754402A (en) * | 2008-12-01 | 2010-06-23 | 三星电子株式会社 | Method and system for finding vacant working frequency bands |
| US20100184435A1 (en) * | 2009-01-22 | 2010-07-22 | Qualcomm Incorporated | Methods and apparatus for providing a wireless expansion network |
-
2010
- 2010-07-28 CN CN201010239999.7A patent/CN102348211B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754402A (en) * | 2008-12-01 | 2010-06-23 | 三星电子株式会社 | Method and system for finding vacant working frequency bands |
| US20100184435A1 (en) * | 2009-01-22 | 2010-07-22 | Qualcomm Incorporated | Methods and apparatus for providing a wireless expansion network |
Non-Patent Citations (1)
| Title |
|---|
| 陈星: "感知无线电物理层关键技术研究", 《北京邮电大学博士研究生学位论文》, 10 October 2008 (2008-10-10) * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101482A1 (en) * | 2012-12-27 | 2014-07-03 | 华为技术有限公司 | Method and base station for sharing frequency spectrum resource |
| US9622087B2 (en) | 2012-12-27 | 2017-04-11 | Huawei Technologies Co., Ltd. | Spectrum resource sharing method, and base station |
| CN103166731B (en) * | 2013-02-01 | 2016-03-02 | 广州视声智能科技有限公司 | The anti-interference method that indoor monitoring emergence message sends and system |
| CN103166731A (en) * | 2013-02-01 | 2013-06-19 | 广州视声电子科技有限公司 | Anti-interference method and system of indoor monitoring urgency message sending |
| CN108322914A (en) * | 2013-03-01 | 2018-07-24 | 英特尔Ip公司 | Frequency spectrum share based on self-organizing network |
| CN108322914B (en) * | 2013-03-01 | 2022-01-14 | 苹果公司 | Spectrum sharing based on self-organizing network |
| CN104717660A (en) * | 2013-12-17 | 2015-06-17 | 中兴通讯股份有限公司 | Frequency spectrum processing method and device |
| WO2015090018A1 (en) * | 2013-12-17 | 2015-06-25 | 中兴通讯股份有限公司 | Spectrum processing method and device, and computer storage medium |
| WO2015165011A1 (en) * | 2014-04-28 | 2015-11-05 | 华为技术有限公司 | Data transmission transmitting terminal device, receiving terminal device, and method |
| WO2016066120A1 (en) * | 2014-10-31 | 2016-05-06 | ***通信集团公司 | Method, apparatus, terminal and base station for detecting spectrum resource |
| US10334464B2 (en) | 2014-10-31 | 2019-06-25 | China Mobile Communications Corporation | Method, apparatus, terminal and base station for detecting spectrum resource |
| CN107913852A (en) * | 2016-10-10 | 2018-04-17 | 顺丰科技有限公司 | The collocation method of wireless sorting device |
| CN107913852B (en) * | 2016-10-10 | 2019-09-03 | 顺丰科技有限公司 | The configuration method of wireless sorting device |
| CN106685551A (en) * | 2017-02-08 | 2017-05-17 | 广州新拓慧电子科技有限公司 | Signal frequency occupation evaluating system |
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